"Ps: progressive or persistent pneumothorax or pneumomediastinum"
"Ps (or written as PPP or PPPP)"
"Ps (or written as PPP or PPPP)"
"Ps (or written as PPP or PPPP)"
"Ps: progressive or persistent pneumothorax or pneumomediastinum"
"Ps (or written as PPP or PPPP)"
"Ps: progressive or persistent pneumothorax or pneumomediastinum"
"Ps (or written as PPP or PPPP)"
"Ps (or written as PPP or PPPP)"
Expected headings
"Mnemonic"